Which one of the following is not redox reaction
Correct answer: D. 2Mg + O2→2MgO
- A. Mg + 2HCI→ MgCI + H2
- B. MgO + 2HCI→ MgCI2+ H2O
- C. Cu +4HNO3→ Cu(NO3)2+2H2O+2NO3
- D. 2Mg + O2→2MgO
Explanation
Both Mg and O already have fixed oxidation states (0) and combine to form MgO without any change in oxidation states.Not a redox reaction.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reaction Kinetics
Reaction kinetics relates reaction rate to concentration, temperature, surface area and catalysts. Questions cover rate laws, reaction order, rate constants, activation energy and the activated complex, including how a catalyst lowers the activation energy without changing the overall energy change or equilibrium position.
Practise Reaction Kinetics
573 free Reaction Kinetics MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.